Hi,
I tried that on HiKey (LeMaker).
All OK except cannot see the signal on HDMI output.I only see the login prompt in serial console!
Started yesterday, so I am working on it. Not sure that’s the driver issue or something else.

Thanks mate,
At least you have cleared that to me there is some issue with this release.

However, I need you to help me make it work on my side please.
I had a look on “mainline-rebase”. you said it’s working with mini-rootfs so I also believe it should work with other rootfs like Ubuntu_ARM64 file as well.
So I need the kernel from this GIT…
But I need to compile that which is time consuming as I have to get the aarch64 linaro toolchain, set it up and it might comm up with other requirements which I believe gets time to fix and make it working.

Can you please give me a guide and files (kernel and others if there are) which you have tried then I check on my side to see if it works with Ubuntu_ARM64 tar file as well? Something that I can replace over and see if it works!

Ok my friend,
I have compiled Kernel, Device Tree and all modules and imparted them to my HiKey.
The Kernel is upgraded to version 4.4.0 and the frame buffer works fine.
I could bring the mini-rootfs up with display available, and also could see the Debian Image which was available in partition 9.
Have not tried the Ubuntu_ARM64 rootfs though. But I think that would be fine too.

@sghazagh glad you could make it work! As you see you should not be afraid of compiling the kernel, as a developer working on big projects involving many components, you can expect you will need to adjust and recompile things… The pre-built binaries are there to help you get things up and running as quickly as possible, but they are necessarily lagging behind the bleeding-edge sources.

Now regarding your GPU question… frankly I don’t know much about this
It seems the Mali driver is present in 4.4 (and hence in the current “mainline-rebase” branch), maybe just not as a module. Did you grep dmesg for “Mali”? I’m usually running a vanilla 4.4 kernel (serial console only), and I do see this in dmesg:

I don’t know why the lightdm does not work!
ARM64 resources are not too complete. for example Lubuntu-Desktop for aarch64 is not available at all!

The mainline rebase Kernel 4.4.0 is quiet good. th thing is that I can boot to graphical GUI if I use Debian-Jessie-ARM64 image provided by Linaro but mine only I can see the command prompt on serial console and now in TTY terminal.

I don’t give up and try to see if I can find it out. By the way, please let me know if you find any clue.